Roof Crush Analysis Technique Using Simple Model with Plastic Hinge Concepts

소성 힌지를 갖는 단순 보 모델을 이용한 루프 붕괴 해석 기술

This paper presents a computational technique to predict roof crush resistance in early design stage of passenger car development. This technique use a simple F.E. model with nonlinear spring elements which represent plastic hinge behavior at weak areas. By assuming actual sections as equivalent simple sections, maximum bending moments which weak areas in major members can stand are theoretically calculated. Results from prediction of roof crush resistance are correlated well with test results.